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avcodec/ansi: Check nb_args for overflow
Fixes: Integer overflow (no testcase)
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit bc0e776c9a
)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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parent
7f7496f6dc
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@ -430,7 +430,8 @@ static int decode_frame(AVCodecContext *avctx,
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s->args[s->nb_args] = FFMAX(s->args[s->nb_args], 0) * 10 + buf[0] - '0';
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break;
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case ';':
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s->nb_args++;
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if (s->nb_args < MAX_NB_ARGS)
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s->nb_args++;
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if (s->nb_args < MAX_NB_ARGS)
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s->args[s->nb_args] = 0;
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break;
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